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Fatty Acid

Polyunsaturated Fat

Also known as: PUFA, polyunsaturated fatty acids

A
Evidence

A macronutrient class containing multiple double bonds in the carbon chain, including omega-3 and omega-6 fatty acids essential for cell membrane structure and inflammatory regulation. Found abundantly in fish oil supplements as a source of EPA and DHA.

Last reviewed June 2026 · Evidence graded from peer-reviewed research, not editorial opinion. Educational only — not medical advice.

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Primary uses

  • cardiovascular health
  • inflammatory response
  • brain function
  • cell membrane integrity

How it works

  • incorporation into cell membranes
  • substrate for eicosanoid production
  • reduction of triglycerides
  • anti-inflammatory signaling

Dosage

Typical range
1-3 grams daily (as part of total fat intake)
Timing
with meals
With food
absorption enhanced with dietary fat
Duration
long-term consumption recommended for sustained cardiovascular benefits
Special populations
pregnant women should prioritize DHA-containing sources; individuals on anticoagulants should monitor intake

Forms

  • fish oil· 70/100
  • algae oil· 70/100
  • flaxseed oil· 70/100
  • dietary sources· 70/100

Safety

Common side effects

  • mild gastrointestinal upset
  • fishy aftertaste (fish oil forms)
  • loose stools at high doses

Contraindications

  • bleeding disorders (at very high doses)
  • concurrent high-dose anticoagulant therapy

Evidence notes

Extensive RCT evidence supports cardiovascular and metabolic benefits of dietary PUFAs, particularly omega-3 sources. Large prospective studies demonstrate consistent associations with reduced cardiovascular events.

Grade A: Multiple well-designed human trials support the main claims.

Cited research for Polyunsaturated Fat

Clinical studies referenced across Formulate guides that mention polyunsaturated fat. Each links to the full study page with PubMed source + the guides that cite it.

Related in Fatty Acid

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Medical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider. Individual needs and risks vary — consult a professional before starting, stopping, or combining supplements, especially if you are pregnant or nursing, taking medication, or managing a health condition.